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3 years ago

Which expression is equivalent to y • 48?

Mathematics

2 answers:

AnnyKZ [126]3 years ago

7 0

Answer:

This anwer is A

Step-by-step explanation:

Tell me if im wrong thank you!

Im like 90% sure

In-s [12.5K]3 years ago

4 0

Answer:

Step-by-step explanation:

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Jane bought an item for $40 that, after seeing it had a 20% discount. janes friend said the original price was $48. is she right

ale4655 [162]

Jane's friend is wrong, the original price would be $200

6 0

3 years ago

Help please with 9 and 10 please !

Lana71 [14]

Answer:

9. The scale factor is 1.5.

10. scale factor = 0.75

the missing side is 9m

Step-by-step explanation:

9. 3/2 = 1.5

9/6 = 1.5

6/4 = 1.5

10. 12/16 = 0.75

12*0.75 = 9

3 0

3 years ago

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morpeh [17]

The answer is 15.50 your welcome

8 0

3 years ago

Simplify cotø(tanø+cotø)

Sladkaya [172]

Answer:

$\large\boxed{\cot\theta(\tan\theta+\cot\theta)=1+\cot^2\theta=\dfrac{1}{\sin^2\theta}=\csc^2\theta}$

Step-by-step explanation:

$\text{Use}\\\\\text{distributive property:}\ a(b+c)=ab+ac\\\cot\alpha\tan\alpha=1.\\\\======================\\\\\cot\theta(\tan\theta+\cot\theta)=(\cot\theta)(\tan\theta)+(\cot\theta)(\cot\theta)\\\\=1+\cot^2\theta\\\\\text{If you want next transformation, then use:}\\\\\cot\alpha=\dfrac{\cos\alpha}{\sin\alpha}\\\\\sin^2\alpha+\cos^2\alpha=1\\\\=======================$

$=1+\left(\dfrac{\cos\theta}{\sin\theta}\right)^2=1+\dfrac{\cos^2\theta}{\sin^2\theta}=\dfrac{\sin^2\theta}{\sin^2\theta}+\dfrac{\cos^2\theta}{\sin^2\theta}=\dfrac{\sin^2\theta+\cos^2\theta}{\sin^2\theta}\\\\=\dfrac{1}{\sin^2\theta}\\\\\text{If you want next transformation, then use:}\\\\\csc\alpha=\dfrac{1}{\sin\alpha}\\\\=\left(\dfrac{1}{\sin\theta}\right)^2=(\csc\theta)^2=\csc^2\theta$

4 0

4 years ago

Find the distance between the pair of points.<br> (2, 0) and (-1, 1)

denis-greek [22]

Step-by-step explanation:

given points (2,0) and (-1,1)

let A(2,0) and B(-1,1)

A(2,0) B( -1,1 )

(x1 , y1) (x2 , y2)

AB = √(x2 - x1)² + (y2 - y1)²

= √(-1 - 2)² + ( 1 - 0 )²

= √(-3)²+ 1²

= √9 + 1

= √10

Therefore,distance between given points is √10

6 0

2 years ago